Seasonal dynamics and diversity of Antarctic marine viruses reveal a novel viral seascape
The Southern Ocean microbial ecosystem, with its pronounced seasonal shifts, is vulnerable to the impacts of climate change. Since viruses are key modulators of microbial abundance, diversity, and evolution, we need a better understanding of the effects of seasonality on the viruses in this region. Our comprehensive exploration of DNA viral diversity in the Southern Ocean reveals a unique and largely uncharted viral landscape, of which 75% was previously unidentified in other oceanic areas. We uncover novel viral taxa at high taxonomic ranks, expanding our understanding of crassphage, polinton-like virus, and virophage diversity. Nucleocytoviricota viruses represent an abundant and diverse group of Antarctic viruses, highlighting their potential as important regulators of phytoplankton population dynamics. Our temporal analysis reveals complex seasonal patterns in marine viral communities (bacteriophages, eukaryotic viruses) which underscores the apparent interactions with their microbial hosts, whilst deepening our understanding of their roles in the world's most sensitive and rapidly changing ecosystem.
Authors
- Gonçalo J. Piedade (ORCID: https://orcid.org/0009-0006-3698-551X)
- Tristan Biggs (ORCID: https://orcid.org/0000-0002-7078-2787)
- Max Emil Schön (ORCID: https://orcid.org/0000-0002-4453-4173)
- Cédric Lood (ORCID: https://orcid.org/0000-0001-7826-3378)
- Corina P. D. Brussaard (ORCID: https://orcid.org/0000-0002-6320-9229)
- Ella M. Wesdorp
- Natalya Yutin (ORCID: https://orcid.org/0000-0002-3633-5123)
- Lingyi Wu (ORCID: https://orcid.org/0000-0001-6727-7280)
- Matthias Fischer (ORCID: https://orcid.org/0000-0002-4014-3626)
- Bas E. Dutilh (ORCID: https://orcid.org/0000-0003-2329-7890)
- Mikhail V. Fofanov (ORCID: https://orcid.org/0000-0002-8839-4547)
- Henk Bolhuis (ORCID: https://orcid.org/0000-0002-4772-1898)
Institutions
- National Institutes of Health (US)
- Utrecht University (NL)
- University of Oxford (GB)
- Max Planck Institute for Medical Research (DE)
- Institute for Biodiversity (DE)
- Royal Netherlands Institute for Sea Research (NL)
- National Center for Biotechnology Information (US)
- Friedrich Schiller University Jena (DE)
- University of Amsterdam (NL)
Publication Details
- Journal
- Nature Communications
- Published
- 2024-10-24
- DOI
- https://doi.org/10.1038/s41467-024-53317-y
- Citations
- 28
- Primary Topic
- Bacteriophages and microbial interactions
- Type
- article
- Field-Weighted Citation Impact
- 12.85
Funders
- Alexander von Humboldt-Stiftung
- European Commission
- Deutsche Forschungsgemeinschaft
- Bundesministerium für Bildung und Forschung
- Fonds Wetenschappelijk Onderzoek
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek
- Koninklijk Nederlands Instituut voor Onderzoek der Zee
- European Centre for Medium-Range Weather Forecasts
- Natural Environment Research Council
- Japan Society for the Promotion of Science
- British Antarctic Survey
- H2020 Marie Skłodowska-Curie Actions